Contact your local Salvation Army. They offer housing assistance to those in dire straights, can refer you to affordable short term housing if you can afford it, and provide other assistance.
Also, perhaps there is someone at your church who can help through their position with the city/state housing division.
I know that we have a lady at our Church who helps the homeless families find apartments, homes while they are in the Interfaith Hopsitality Network for homeless families.
Any children?